Fire damper BSK-RPR-EU
Technical
documentation
Spring
return actuators
Construction subject to change
No return possible
Version: 2015-02-01 | Document: 09/48 | Page 11
SPRING RETURN ACTUATORS
Electric spring return actuators B10/B11
B10 (BFL24-T-ST SO), B11 (BFL230-T SO)
Figure
14
: BSK-RPR-EU with electric
spring return actuator
Connection diagram
Spring return actuators B10/B11
Figure
15
: Connecting diagram B10/B11
Electric spring return actuator with thermoelectric release
device BAT.
Trigger temperature (internal duct temperature) 72°C
Operating position (damper "OPEN") and tensioning of
the return spring by applying the supply voltage.
24V actuators with connectors that can be removed on
site if required.
Safety position (damper "CLOSED") through spring
force when supply voltage is interrupted or the tempe-
rature fuses (ambient temperature or internal duct
temperature; 72°) respond. Reaction of the thermal fu-
ses interrupts the supply voltage permanently.
Attention!
Safety function is only guaranteed if the drive has been
connected to the supply voltage in accordance with regula-
tions and unlocked mechanically.
Display of the damper end positions is possible by me-
ans of integrated micro switches via potential-free
changeover contacts (connected on-site) (S1 – S3
"CLOSED" indicates the closed position; S4 – S6 "OPEN"
indicates the opened position)
Manual actuation and fixing in any position is possible
in the de-energised state. It is unlocked manually.
On-site function control is possible by means of the
control key of BAT.
Spare parts: Temperature fuse for temperature inside
the duct (ZBAT72). Exchange takes place by unscrewing
the two screws of the thermoelectric release device.
Remove the thermoelectric trigger device from the dri-
ve unit. Remove the internal duct temperature fuse
from the thermoelectric release device and replace it
with a new internal duct temperature fuse (ZBAT72).
Screw the thermoelectric trigger device back onto the
drive unit.
For any other damage etc., the entire "actua-
tor/thermal release device" must be replaced comple-
tely.
Attention:
24 V connection via safety transformer
B10 (BFL24-T-ST SO)
Plug-in version for
connection to the com-
munication and power
supply unit BKN230-24
Parallel connection of further drives
is possible. Observe specifications.
